Did you ever get something into your head that things just HAVE to be the way they are?
I put on some Doors in memory of Ray Manzarek and was walking around downstairs and it struck me that it sounded best from the kitchen instead of from the couch.
I grabbed the right hand speaker and gave it a good twist to the right,

grabbed the left hand speaker and gave it a tug to the left.

This is pretty much how I had the 3.7s and guess what?
After a quick walk around the place it sounds best from the listening spot.
I did a little additional screwing around with the angles since the pictures were taken, messed with the drapes some and all is well.
The moral to this bit is it's a mistake to get locked into thinking that something HAS to be done a certain way or else it won't work right.
I should remind myself of that once every so often!